Which diagram shows a lamp wired correctly to the mains supply in a house?

5054_w15_qp_11

MCQ

2015

Paper 1, Variant 1

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The headlamp circuit in a car includes a 7A fuse. What is the purpose of the fuse?

5054_w16_qp_12

MCQ

2016

Paper 1, Variant 2

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The diagram shows the circuit for a hair-dryer. P Q R M fan motor The fan motor has a power rating of 0.10 kW and the heaters each have a rating of 0.40 kW. The cost of electricity is 8.0 cents / kW h. What is the cost of running the hair-dryer for two hours with switches P and Q closed and switch R open?

5054_w17_qp_11

MCQ

2017

Paper 1, Variant 1

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The diagram shows the circuit for a hair-dryer. P Q R M fan motor The fan motor has a power rating of 0.10 kW and the heaters each have a rating of 0.40 kW. The cost of electricity is 8.0 cents / kW h. What is the cost of running the hair-dryer for two hours with switches P and Q closed and switch R open?

5054_w17_qp_12

MCQ

2017

Paper 1, Variant 2

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In a lighting circuit, the switch is placed in the live wire. Why is this?

5054_w18_qp_11

MCQ

2018

Paper 1, Variant 1

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In a lighting circuit, the switch is placed in the live wire. Why is this?

5054_w18_qp_12

MCQ

2018

Paper 1, Variant 2

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Which cable transmits electrical energy at the highest voltage?

5054_w18_qp_12

MCQ

2018

Paper 1, Variant 2

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Why is a fuse used in an electrical appliance?

5054_w22_qp_11

MCQ

2022

Paper 1, Variant 1

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Why is a fuse used in an electrical appliance?

5054_w22_qp_12

MCQ

2022

Paper 1, Variant 2

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A girl turns the handle of a small a.c. generator four times each second. The generator produces a maximum output voltage of 0.5 V. Which of the following graphs best shows this?

5054_s05_qp_1

MCQ

2005

Paper 1, Variant 0

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